Module: UniverseCompiler::Entity::FieldConstraintManagement

Included in:
Base
Defined in:
lib/universe_compiler/entity/field_constraint_management.rb

Constant Summary collapse

BOOLEAN_CONSTRAINTS = 
%i(not_null not_empty is_array is_hash).freeze
PARAMETRIZED_CONSTRAINTS = 
%i(should_match class_name).freeze
INCOMPATIBLE_CONSTRAINTS = 
{
    has_one: %i(has_many is_array is_hash),
    has_many: %i(has_one is_hash),
    is_array: %i(has_one is_hash),
    is_hash: %i(has_one has_many is_array)
}.freeze

Instance Method Summary collapse

Instance Method Details

#field(field_name, *options) ⇒ Object 



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# File 'lib/universe_compiler/entity/field_constraint_management.rb', line 44

def field(field_name, *options)
  ['', '='].each do |suffix|
    method_name = '%s%s' % [field_name, suffix]
    if instance_methods.include? method_name
      raise UniverseCompiler::Error,
            "'#{method_name}' method cannot be defined on '#{self}' as it is already defined  !"
    end
  end

  define_constraint field_name if options.empty?

  options.each do |option|
    case option
    when Symbol || String
      if BOOLEAN_CONSTRAINTS.include? option.to_sym
        send option, field_name
      else
        raise UniverseCompiler::Error, "Unknown field option '#{option}' !"
      end
    when Hash
      option.each do |constraint_name, value|
        if PARAMETRIZED_CONSTRAINTS.include? constraint_name.to_sym
          send constraint_name, field_name, value
        else
          raise UniverseCompiler::Error, "Unknown field option '#{constraint_name}' !"
        end
      end
    else
      raise UniverseCompiler::Error, "Invalid option for '#{field_name}': #{option.class.name} => #{option.to_s}"
    end
  end

end

#fields_constraints ⇒ Object 



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# File 'lib/universe_compiler/entity/field_constraint_management.rb', line 16

def fields_constraints
  return @fields_constraints unless @fields_constraints.nil?

  @fields_constraints = if superclass.respond_to? :fields_constraints
                          superclass.fields_constraints.dup
                        else
                          {}
                        end
end